I am glad at least that somebody else has managed to replicate it and I am not going mad! Probably just my luck that it only affected the 10 character strings that I tried. I will have to look into a more robust encryption method.
-----Original Message----- From: Fabio Terracini [mailto:[EMAIL PROTECTED] Sent: 26 September 2005 14:45 To: CF-Talk Subject: Re: Weird Encrypt/Decrypt problem! Whoa. So weird I also tested here, and the encoded "johnmurray" was decoded to "johnmurrax"! It's not with all 10 charcs. string, by the way. I think this is a CF default algorithm (CFMX_COMPAT, which is compatible do earlier versions of CF) implementation bug. You should use a more secure and standard algorithm, like TripleDES. Check out the Encrypt() documentation. -- Fabio Terracini Andy Mcshane wrote: >Hi all, I am trying to store specific data into a database in an encrypted format. This data also has to be decrypted so as to be displayed and edited onscreen therefore ruling out using the hash function. The problem that I am having is on the decrypt. > >Example: > ><cfset foo = encrypt("johnmurray", "wibble")> > >foo then equals "*5)V%5*.Z59RR$" > >I save this text to the database. An unusual thing happens when I try to decrypt this text as follows; > ><cfset foo = decrypt("*5)V%5*.Z59RR$", "wibble")> > >foo then equals "johnmurrax" > >as you can see the 'y' has become an 'x'. > >Now here is the strange thing, > ><cfset foo = encrypt("johnmurray ", "wibble")> - with an extra space at the end of johnmurray everything encrypts/decrypts correctly using an 11 character string. > >also > ><cfset foo = encrypt("johnmurra", "wibble")> - if I make it only 9 characters then this also encrypts/decrypts correctly. > >It seems to only happen with 10 letter strings? > >This is on Coldfusion 7, using a SQL database. I have tried URLEncodedFormat before saving to the database and then using URLDecode after retrieveing. As this text is defined by the user then I cannot simply say that there can be no 10 character strings so has anyone ever come across this? > >Does anyone have any better encryption ideas I could use? This is a really annoying little quirk as to why it only seems to affect 10 character strings, weird huh? > > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| Logware (www.logware.us): a new and convenient web-based time tracking application. Start tracking and documenting hours spent on a project or with a client with Logware today. Try it for free with a 15 day trial account. http://www.houseoffusion.com/banners/view.cfm?bannerid=67 Message: http://www.houseoffusion.com/lists.cfm/link=i:4:219236 Archives: http://www.houseoffusion.com/cf_lists/threads.cfm/4 Subscription: http://www.houseoffusion.com/lists.cfm/link=s:4 Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=89.70.4 Donations & Support: http://www.houseoffusion.com/tiny.cfm/54
